About: http://webisa.webdatacommons.org/192089592

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	So, I guess it is useful as just one more test to confirm when you are fertile, but if you are charting your temp and cervical fluid, this device is unnecessary.
http://www.w3.org/ns/prov#wasQuotedFrom	fairhavenhealth.com